Baker&#39;s-oven light.



C. ROBSON.

BAKERS OVEN LIGHT. APPLICATION FILED APR. so. 19x2.

Patented Sept. 21, 1915.

2 SHEETSSHEET1 INVENTO marks P0125011 5V W (5 A WW Afro/5W5).

A PLANOGRAPH (IO-,WASHINGTON, D c.

C. ROBSON.

BAKERS OVEN LIGHT.

APPLICATION FILED APR. 30. I9I2.

1,154,339. PatentedSept. 21, 1915.

2 SHEETS-SHEET 2.

WI 74 59856.- AWE/V701? mar/es EOASOII ITTOR/VEY COLUMBIA PLANOGRAFH 60., WASHINGTON, D, c.

CHARLES ROBSON, OF PHILADELPHIA, PENNSYLVANIA.

BAKERS-OVEN LIGHT.

T (ZZZ who m1??? may concern Be it known that '1, CHARLES RoBsoN, a citizen of the United States, and a resident of Philadelphia, in the county of Philadelphia and State of Pennsylvania, haveinvented certain new and useful Improvements in Bakers-OvenLights, of which the following is a specification.

The principal objects of the present invention are to provide a comparatively simple, efficient and reliable bakers oven light which may be operated either by gas or electricity; to provide for readily and conveniently connecting the device for either gas or electricity, and to so construct, combine and arrange the parts that the light is lighted when the door is open .and is extinguished when the door is closed.

The invention will be claimed at the end hereof, but will be first described in connection with the embodiment of it selected for illustration in the accompanying drawings in which Figure 1, is a perspective view of parts of an oven illustrating apparatus embodying features of the invention in application thereto. Figs. 2 and 3, are respectively sectional end and plan views of parts illustrated in Fig. 1, drawn to an enlarged scale. Fig. at, is a front View of apparatus embodying the invention arranged for use with gas. Fig. 5, is a sectional view taken on the line 5-5 of Fig. 1, and Fig. 6, is an enlarged elevational view, partly in section, illustrating details of construction.

In the drawings 1 is an oven door frame and it is provided with a lateral extension 2, having an opening therein, and at the other end with a housing fora counterweight.

' 3, is a casing adapted to receive the light, and open at the front and also at the back so as to open into the oven.

1, is a lantern which can be turned by a rod 5 and which is transparent on one side and opaque on the other side, so that it can be turned to let the light shine in the oven and to protect the light from the heat of the oven.

6, is, the oven door hinged to the frame 1 by pintles, of which one, 7, is provided with a counter-weight 8 and the other 9, extends toward the projection 2 and is provided with a crank-arm 10.

11, is a fixture in the housing 3 and it is provided with a threaded opening 12 in Specification of Letters Patent. Patented Sept, 21 1915 Application filed April 30, 1912. Serial No. 694,049. 6

line with a gas-way 13. The burner 14 passes through this opening 12 (Fig. 5), or an electric lamp socket 15 can be mounted in that opening.

lVl1en electricity is used supply connections 16, Fig. 1, lead to theextension 2 and from the extension 2 supply connections 17 lead into the housing 3, as shown by way of a pipe 18, Fig. 6, and terminate in a plug 19. The plug 19 is arranged to take into the side of the lamp socket 15 and thus establish a circuit through the electric lamp. Mounted on the extension 2 is a knife switch arm 20 pivoted at 21 and provided with a cam 22 that cooperates with a spring pressed follower 23 so that the cam and follower bring about quick movements of the switch arm. The switch arm serves to make and break the supply connections 16 and 17 at the contacts 24, thus lighting and extinguishing the light. The switch arm is provided with a fork 25 in which works the crank arm 10, or more accurately a crank pin connected with it.

When gasv is to be used, supply connec tions 26 lead to the extension 2 and from it supply connections 27 lead to the burner 14 (Figs. 1 and 5). 28, is the shank of a valve in the gas connection 26 and through it so as to be endwise slidable passes a rod 29 pivoted to the crank pin of the crank arm 10, so that when the crank arm is turned the valve at 28 is opened or closed, the rod 29 partaking of endwise motion through th ways or openings that are formed for it in the projecting portion of the plug of the valve. The valve 28 and the snap switch shown in Figs. 2 and 3, may either one of them be attached to or detached from the extension 2.

The movable element of the device that controls the light is attached to a base'which is boltd or otherwise detachably connected with the extension 2.

In use when the oven door is swung open or shut, the crank-arm 10 connected with its pintle is turned. In the case of electric lighting the turning of the crank-arm throws the switch arm 20 and thus lights or extinguishes the electric lamp. In the case of gas this motion of the crank-arm turns the gas on or off at 28 and thus lights or extinguishes the burner 1-1. In either case the lantern 41 is so turned that its transparent side is exposed to the oven when it is desired to illuminate the latter and its opaque side is turned toward the oven at other times.

Evidently the structure can be readily adapted to either gas or electric lighting and operates in the same way in either case.

What I claim is:

1. In a bakers oven the combination of a door frame having a rigid lateral extension provided with an opening, a door hinged to said frame and having a pintle on one side of the extension, a crank arm on said pintle arranged opposite the opening, a base extending through said opening and attached to said extension, a switch arm pivoted to the base to one side of the extension and provided with a fork engaging the crank arm in two directions, and a switch contact attachedto the base and arranged on the side of the extension opposite the pivotal point of the switch arm, substaning and provided with a threaded opening,

a gas way alined with the opening, a pipe, and circuit connections and a terminal plug arranged in the pipe and projecting toward the fixture whereby the fixture can be employed interchangeably with a gas burner 7 or an electric lamp, substantially as described.

In testimony whereof I have hereunto signed my name. Y

7 CHARLES ROBSON WVitnesses: it

Cn rronn K. CAssEL, FRANK E. FRENCH,

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Batentg,

i Washington, D. C. 1 

